Logging mechanism



O. B. BJORGE LOGGING MECHANISM Filed Aug. 20, 1923 5 Sheets-Sheet vl INI/ENTOR. 06cmjozje.

ATTORNEYSl o. B. BJORGE LOGGING MECHANISM ugf 19, 1924.

Filed AuE. 20

1923 3 Sheets-Sheet 2 f INVENTOR. 05cm" @702196 @w/dc @r ATTORNEYS Patented iug. i9, i924,

OSCAR B. BLTOR-G-E, OIF PORTLAND, OREGON, ASSGNOR, BY MESNE'ASSIGNMENTS, 4'lO CLYDE IRON EVOR'KS, OF DULUTH, MNNESOTA, .Fi CORPORATION 0F EKAINE, i

LOGS-ING MECHANISBII.

Application filed August 20, 1923. Serial No. 658,376.

To all whom t may concern.'

Be it knownthat l, @soi-in B. BJORGE, a citizen oli' the United States, and a vresident of Portland, 'county of Multnomah, and State of Oregon, have invented a new and useful improvement in Logging Mechanism, of which the following is a specification, the principle ot the invention being herein explained and the best mode yin which I have contemplated applying that vprin-` machinery is ordinarily mounted upon a` steel railway car or a sled, which may be readily moved to the place oi' operation, where a tower or spar tree is utilized to carry the various blocks for the skidding and loading lines. lVhen the car is placed adjacent the spar tree, the various cables are run upwardly to their respective blocks.

Frequently the blocks for the skiddinglines` are mounted on one side ot the tree andthe blocks itor the loading lines are mounted on the opposite side. Consequently the various sets olf lines leading from the two sides ot the tree assume dierent anglesas they are led to their respective winding drums,

and it is to the correct mounting ot saidl drums, so that all the lines will lead properly thereto, that this invention .is directed.

@ne of the objects hereof is to provide a simple and easily adjustable mounting for the loading machinery, whereby said ina-y chinery may be quickly angularly adjusted n with respect to the car and' skidding machinery.

The present invention also provides novel means tor rigidly holding the loading machinery in adjusted position. To

the accomplishment of the: foregoing and related ends. said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawings and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but

one of various mechanical forms in rwhich the principle ot' the invention may be used.

in said annexed drawings Fig. l is a side elevation of a logging mechanism in which my` improved invention is incorporated;

Fig. 2 is a plan view thereof;

Fig. 3 is a plan view ot the skidding and loading machinery on an enlarged scale, showing` the manner in which the Lvarious cables are led to a spar tree; f y

Fig. 4 is a side elevationof the loading machinery and itsk novel mounting; and

Fig. 5 is a front elevation on a still larger scale oit the loading machinery, showing in detail the present improved mounting therefor, in connection with means tor holdingv it `in adjustable position.

rlhe type ot logging mechanism embody ing they present invention is well known and only a general description thereof is deemed suiiicient to give a complete understanding ofthe invention. yl indicates a steel railway car of the flat type mounted upon suitable wheels 2. which arel 'adapted to convey the cai over4 tracks 3. Mounted at one end ot the car l is an engine a of usual construction, which is employed through suitable valvesor levers to control the operation of the skidding machinery which is designated generally at and comprises a number of i power driven vwinding drums 6 upon which are wound the skidding lines or cables- 7. In Lthe present embodiment, the skidding machinery is mounted on the rear end of ther car and iii front ot' the skidding machinery is located the loading machinery 8, which also comprises a number of power driven winding drums 9. y Upon the drums 9 are wound the loading lines or cables 10. Other machinery such as a rigging engine 11, which is used for setting the .lines and blocks, may also be mounted on the car l.

ln use, the car is moved over the track to thek desired fplace of operation. Such place is usually selected adjacent a spar tree l2 which may be used as a tower tory carrying the blocks of the various skidding and loading cables. The car is held in position very close to the treeand the lines from the rlogging mechanism are run upwardly to blocks `mounted `near thetop ido of the tree, from which blocks the lines are led to the scene of operation for skidding and loading of logs. 1n practice, the blocks 14e for the skidding lines are mounted on one side of the tree and the blocks 15 for the loading lines are frequently mounted on the other side thereof. lt will be obvious that the various lines will assume different angles in leading `from their respective blocks to the winding drums mounted on the car. 1n the case of the skidding lines, the flexibility in the moun-ting of the car itself, upon which is rigidly mounted the skidding machiner compensates for the angularity of such lines and allows them to be wound on the skidding drums in proper lead.

It will also be obvious that it is necessary to provide means for tilting the winding drums of the loading machinery to one side or the other, so that the lines wound thereon willk be in proper lead. Such tilting of the loading machinery must necessarily be independent of the mounting of the skidding machinery on account of the variance in the angularity of the skidding and loading lines. As illustrated'in the drawings, the loading vmachinery 8 comprises a base or framework 16 upon which is mounted 'the loa-ding drums 9 and the operating mechanisrn 17 therefor, which, in the present instance, comprises steam cylinders suitably connected with the drums. The framework is mounted slightly above thetop of the car l, so that it may be tilted from side to side. Such ymounting comprises a longitudinal hinge or hinge members 18 which may be conveniently located along the central longitudinal axis of the loading machinery between 'the bottom of the framework and the top of the car. The hinge members 18 comprise a bracket 20 secured to the underside of the framework, a fulcruin pin 21 and a desired position.

rcar 1 are suitble adjustable hold-down bolts 2&1. Adjusting nuts 25 are provided `upon such bolts for the purpose of locking the framework 16 in adjusted position. 1n changing from one position to the other, it is only necessary to loosen the bolts and nuts on one side and tighten the bolts and nuts on the other side to place the engine in any Other modes of applying the principle of my invention may be employed instead of said loading engine being pivoted along an axis parallel to said longitudinal axis.

2. In a logging mechanism, the combination with a platform, of a skidding engine mounted thereon, and a loading engine also mounted on said platform, the winding drums of said skidding and loading engines being arranged transversely of the longitudinal axis of the platform, said loading engine being pivotally mounted about a lon-- gitudinal fulcrum and being adapted tov be angularly adjusted with respect to said skidding engine.

3. In a logging mechanism, the combination with a platform, of a skidding engine mounted thereon, and a loading engine mounted on a longitudinally extending hinge provided on said platform whereby said loading engine may'befangularly adjusted with respect to said skidding engine, the winding drums of said skidding Yand loading engines being arranged transversely of the longitudinal axis of the platform.

e. In a logging mechanism, the combination with a plat-form, of a skidding engine mounted thereon, a loading engine mounted on a longitudinally extending hinge provided on vsaid platform whereby said loading engine may be angularly adjusted with respect to said skidding engine, the winding drums of said skidding and loading engines being arranged transversely of the longitudinal axis of the platform, and means for holding said loading engine in adjusted position.

5. In combination, a railway car, a skidding engine rigidly mounted on said car, a loading engine spaced above the car, the winding drums of said skidding and loading engines being arranged transversely of the longitudinal axis of the platform, a longitudinal hinge member mounted centrally under and pivotally connecting said loading engine to said car, and adjustable bolts connecting each side of said engine to said car.

6. In a logging mechanism, the combination of a platform, a loading engine, co-operating pivot members on said platformand the base of said loading engine, respectively, and means for adjusting lthe base of said side of said engine to Said platform to hold the base of said engine at any desired angular adjustment about said pivot. 10 Signedby me this 11th day of August,- 1923. v

OSCAR B. BJORGE. 

